Engineering :: Energy Conversion

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411.

Coal rank classifies coal according to its

A.	carbon percentage	B.	ash content
C.	degree of metamorphism	D.	density

412.

Exosphere is the space beyond the earth's atmosphere. It begins at a height of about

A.	100 km	B.	220 km
C.	400 km	D.	1000 km

413.

A fast breeder reactor

A.	operates with fast neutrons and produces less fissionable material than it consumes	B.	operates with fast neutrons and produces more fissionable material than it consumes
C.	operates with slow neutrons and produces less fissionable material than it consumes	D.	operates with slow neutrons and produces more fissionable material than it consumes

414.

Fluidized bed combustion helps to reduce

A.	boiler size	B.	pollution
C.	both (A) and (B) above

415.

Flash generally results from

A.	gas turbines	B.	diesel engines
C.	pulverized coal boilers	D.	fluidized bed boilers

416.

In a boiler, the carry over of slugs of water into the piping due to dirty water is termed as

A.	beating	B.	foaming
C.	scalping	D.	pitting

417.

The total power of a wind stream is proportional to

A.	velocity of stream	B.	(velocity of stream)2
C.	(velocity of stream)3

418.

Tidal energy source mainly makes use of

A.	kinetic energy of water	B.	potential energy of water
C.	both kinetic as well as potential energy of water	D.	None of the above

419.

Tidal energy plant in India is being located at

A.	Kerala	B.	Gujarat
C.	Orissa	D.	Tamil Nadu

420.

All of the following are electrical mechanical storage systems EXCEPT:

A.	pumped hydro system	B.	torsion bar system
C.	super conducting coils	D.	kinetic flywheels